Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbb9867a1516126b…

MALICIOUS

PDF

72.4 KB Created: 2021-03-06 01:53:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: b391cb0534839d56f62d9b9648b53e80 SHA-1: a537ee9b4e8347d56926b37179b3471ccf23b7b8 SHA-256: dbb9867a1516126b61f32548d2371d236d0c0c908c631e081e19662ab9b851c0
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://soxebez.ru/wix?keyword=new+testament+apocrypha+vol+2+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4380219/normal_6021855e6a621.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404116/normal_6017d73d21642.pdfIn PDF document text
    • http://pomirkapa.site/zakivugevuzusulfe96z.pdfIn PDF document text
    • http://mon-cmso.best/tumuxarujulodefenujarires3e490.pdfIn PDF document text
    • https://xisuludibu.weebly.com/uploads/1/3/5/3/135300694/957154.pdfIn PDF document text
    • https://vilinumatilaji.weebly.com/uploads/1/3/2/7/132740241/kisepofowuvenakifut.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480897/normal_6042c1f3a5599.pdfIn PDF document text
    • http://reactivaperu-viabcpi.com/zaxikijogajekikor5u.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422628/normal_5fe2f09e2a482.pdfIn PDF document text
    • https://lulexabike.weebly.com/uploads/1/3/1/4/131407361/7560959.pdfIn PDF document text
    • http://futup.ru/medio_hipotonico67a6d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412599/normal_5fc70c7357a13.pdfIn PDF document text
    • http://sberpodarok2020.online/xoluvatuwutofofalz6lj6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://8a833fea-7c9a-4d2e-a5a7-d3590f42a3e5.filesusr.com/ugd/9aab09_5ba6de080c0445a88229c5dc795cb161.pdf?index=trueIn PDF document text
    • https://ca30e0e0-ecf2-44ab-b6a2-fe26291458be.filesusr.com/ugd/34e21e_687052597a574fcea51901713e87863f.pdf?index=trueIn PDF document text
    • https://0f8fedcd-12c0-4678-86f8-e2bff7269121.filesusr.com/ugd/70e7d4_b5ba1cd90cdd47ab93dc9adcd117043a.pdf?index=trueIn PDF document text
    • https://9f5bcc56-a059-4f00-ae85-604acd6a3d2d.filesusr.com/ugd/ac9354_4242128084264154bb5a384d9bb98ef2.pdf?index=trueIn PDF document text
    • https://16fd3b15-5541-4454-9538-28daacbf497e.filesusr.com/ugd/e32576_aa09a7205ffe4ce2bca5f900669bd2d1.pdf?index=trueIn PDF document text
    • https://367e539a-c541-4439-991c-4bf2bef2aa7a.filesusr.com/ugd/77d535_292293763b8147f8810b584174f7312f.pdf?index=trueIn PDF document text
    • https://c504e2ef-f928-4e80-b5b1-fc05046f432e.filesusr.com/ugd/247f25_db2ceafad6d14fe6a36d3cadbcad942c.pdf?index=trueIn PDF document text
    • http://gumikibe.rf.gd/65255857988.pdfIn PDF document text
    • http://fujunaxukipasin.rf.gd/gatabawafen.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dd6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD6E 5752 bytes
SHA-256: 1ef11cb97151575e3a9200d565aecd1679e1fd9cbd847f94e55e1badc135b9a0
font_01_sfnt_off0000f0fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0FD 10344 bytes
SHA-256: a7195125450bab68a44a263b53297384ff734d86e1acf01ab0dd9fc03a6ae620

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